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The purpose of this paper is to formulate a specialized artificial neural network algorithm utilizing radial basis function (RBF) for modeling of time to failure of aircraft engine turbines.

The model uses training failure data collected from operators of turboprop aircraft working in harsh desert conditions where sand erosion is a detrimental factor in reducing turbine life. Accordingly, the model is more suited to accurate prediction of life of critical components of such engines. The used RBF employs a closest neighbor type of classifier and the hidden unit’s activation is based on the displacement between the early prototype and the input vector.

The results of the algorithm are compared to earlier work utilizing Weibull regression modeling, as well as Feed Forward Back Propagation NN. The results show that the failure rates estimated by RBF more closely match actual failure data than the estimations by both other models. The trained model showed reasonable accuracy in predicting future failure events. Moreover, the technique is shown to have comparatively higher efficiency even with reduced number of neurons in each layer of ANN. This significantly decreases computation time with minimum effect on the accuracy of results.

Using RBF technique significantly decreases the computational time with minimum effect on the accuracy of results.

This study aims to explore the factors that affect online knowledge sharing among the scientific performance of academics at the University of Mosul, Republic of Iraq.

Data were collected by using a random sample by means of an electronic questionnaire distributed to 211 academics at the University of Mosul via online platforms. Structural equation modeling was used to test hypotheses using AMOS 24 software.

The results showed that collaboration, perceived flexibility and willingness to share had a significant effect on online knowledge sharing behavior and that which in turn had an effect on the academic performance of respondents, while the results showed no influence of knowledge self-efficacy and communication on the behavior of online knowledge sharing.

In this research, the effects of five factors on online knowledge sharing behavior were studied, in addition to the effect of the latter on academic performance. The research did not study the effect of the participants’ personal characteristics on the behavior of knowledge sharing online, which could be an area of future investigation. The study was limited to online knowledge sharing for academics working in public universities, and the authors suggest conducting a future study from the perspective of medical staff working in hospitals and its impact on their performance.

Based on the findings of the current study, this study suggests that the academic staff at the University of Mosul and similar universities pay attention to scientific cooperation between researchers and teaching staff, by creating online groups to carry out joint research projects that contribute to sharing knowledge among participants through social media in general and scientific platforms in particular. Establishing a scientific research portal could serve this well for example.

Most previous studies have focused on areas related to knowledge sharing in higher education institutions from the traditional perspective and therefore studies that examine the factors affecting online knowledge sharing among academics are limited, so this study fills this gap. This paper focuses on identifying the scientific benefits for academics through knowledge exchange and the use of electronic platforms at the University of Mosul. The study is expected to contribute to enhance the exchange of knowledge online between academics in similar universities in Asia and Africa due to the convergence of cultures and the nature of the work of these universities, as well as the possibility of generalization due to the research’s use of the deductive method.

The purpose of this paper is to identify the key drivers for adopting electronic bidding (e-bidding) systems in public construction projects located in Saudi Arabia.

Literature review was undertaken to identify the drivers of e-bidding practices. Nine drivers, classified under four categories, were identified. A questionnaire survey was developed to assess the significance of the identified drivers. Responses were obtained from 20 large contractors, classified as Grade I and II contractors in Saudi Arabia, and 12 governmental authorities, representing owners of construction projects. The drivers were ranked according to their respective significance index (SI) values. Finally, a Spearman’s rank correlation coefficient was employed to ascertain the extent to which the two parties agreed on the significance level of the drivers.

Analysis of the identified drivers revealed that the most significant driver was “reduction in the physical storage requirements of bidding paperwork.” Further, a consensus was observed with regards to the significance of the drivers. The findings of the present study highlight the strong potential of widespread e-bidding adoption in Saudi Arabia. It demonstrates the key drivers for the implementation of e-bidding through the perspective of professionals within the context of Saudi Arabia.

Prior to this study, no previous research has endeavored to assess the drivers of e-bidding adoption in Saudi Arabia. The adoption of e-bidding will benefit organizations through improved efficiencies, which could potentially lower construction costs, thereby contributing to economic growth and benefitting the society at large.

The purpose of this paper is to identify and assess the significance of various factors affecting maintenance costs of public school facilities.

Detailed literature review resulted in identifying 54 factors that were categorized under nine groups. This was followed by a questionnaire survey completed by 60 experienced professionals. The relative importance index was used to determine the in-group ranking, as well as the overall ranking of these factors.

The study established that the five most significant factors affecting the maintenance cost of public school facilities were “not providing operations and maintenance manuals to maintenance group” in the “construction phase” category, “ignoring maintainability studies in design” in the “design phase” category, “specification of low-quality materials” in the “design phase” category, “selection criteria of contractors” in the “regulations and contracting” category, and “lack of quality control during work execution” in the “construction phase” category.

The present research represents the first research covering the maintenance cost of public school facilities in Saudi Arabia. The study also presents the unique landscape of facility maintenance in the Saudi Arabian context. The outcome of this research has the potential to significantly cut down unnecessary costs rooted in expensive maintenance of public school facilities, enhancing the quality of these facilities. The findings also underscore the necessity of collaboration and coordination of the various key disciplines toward the realization of cost-effective school facilities.

Projects in the construction industry have been confronted with an unprecedented volume of claims, which negatively impact the construction business environment. The purpose of this paper is to identify and assess the major causes of claims and disputes, from the perspectives of three key stakeholders.

An online and paper-based questionnaire was distributed to a random sample of 250 professionals. Responses from 86 construction professionals were obtained. The significance index was employed to rank the factors and hence assess their relative significance. Results were analyzed from both the individual stakeholder, and collective perspectives. Test of agreement was also conducted.

The research found the following causes to be the most significant contributors to claims and disputes in Saudi Arabia: “change or variation orders due to new requirements from client” (78 percent), “variations in quantities due to new requirements from client” (74 percent), “delay caused by contractor” (74 percent), “design errors or omissions” (72 percent) and “inconsistencies in the drawings and specifications” (70 percent).

The research provides an in-depth assessment of the causes of claims and disputes, in the setting of a fast growing industry, in which strong performance is essential to continued success. Unlike several of the reviewed studies which reported “delay caused by the owner” or “delayed in payment” as a major cause of claims and/or disputes, the findings of the current study indicated that this cause was not the most significant. Instead, it was determined that the top causes of claims and disputes were attributed to all parties, including consultants, contractors and clients.

The literature revealed a limited number of studies on critical success factors (CSFs) in Saudi Arabia. These studies were either outdated, covered limited factors or focused on very specific issues of a project. In response to this knowledge gap, the purpose of this paper is to identify and assess the factors which affect the success of construction projects in Saudi Arabia.

In all, 91 CSFs were identified from the literature, and grouped under eight categories according to categorization schemes adopted by earlier studies and common characteristics shared by the factors. A questionnaire survey was adopted since it permits the collection of large volumes of data in a short period. In total, 61 responses from industry experts were used to compute the significance index for each factor and rank the most CSFs.

Contractors viewed the three most significant CSFs as “competency and capability of the contractors’ key personnel in different disciplines,” “adequacy of labor resources and their skills” and “the impact of the project on the public.” Consultants viewed the three most significant CSFs as “competency and capability of the consultants’ key personnel in different disciplines,” “clear communication channels between the owner/PM and the designer” and “PM competency, authority and involvement.”

Although a significant number of studies have investigated CSFs for construction projects, these studies do not provide an extensive list of CSFs, and none have studied CSFs in large-scale construction projects in Saudi Arabia from the viewpoint of two key stakeholders. This study attempts to address this knowledge gap.

Purpose: This chapter identifies performance factors that have the strongest impact on companies’ sustainable outcomes and compares the obtained results across different sectors.

Methodology: About 3,384 observations were gathered from 2015 to 2022 from companies in communication services, energy, financials, real estate, and utilities sectors that comprise the ‘STOXX Global ESG Leaders Select 50’ index. The multiple regression model is constructed with companies’ ESG scores as dependent variables and independent variables representing operational, financial, and market performance.

Findings: Companies that tend to have higher operational and financial performance in the financial sector are more likely to have higher ESG performance. The financial performance results of companies showed the strongest statistically significant relationship with environmental and the weakest with governance scores.

Implications: Results benefit private and institutional investors aiming to create more sustainable portfolios. The obtained results indicate that these investors should focus on companies operating in the financial and energy sectors with higher performance results. Better ROE, ROA, and Tobin’s Q may have a negative impact on sustainable outcomes for companies operating in the real estate and utility sectors.

Limitations: Firstly, not all ESG index providers disclose information about their index constituents. Secondly, within the chosen ‘STOXX Global ESG Leaders Select 50’ index, not all constituents had complete ESG data available on the Bloomberg platform. When selecting the analysis period, it was observed that the accessible ESG data on Bloomberg covers a relatively short time span, only from 2015 onwards.

Future research: A larger number of companies by choosing a more comprehensive available ESG index.

Environmental performance (EnPerf) needs to be critically studied so organizations can understand enhancing it. The purpose of this study is mainly to examine and explain the influence of beliefs and values of the human resources regarding religiosity (REL) and workplace spirituality (WS) on shaping an environmentally friendly work culture comprising environmental ethics (EE) and environmental passion (EP), to enhance EnPerf.

A survey methodology was used, and 316 responses were collected from the employees working in industries on the top list of polluting the environment using purposive sampling. Structural equation modeling was deployed to test the hypotheses.

This research is conducted to identify specific relationships of variables with the environment. It was discovered that WS affected EP and EE, positively affecting EnPerf.

This study guides organizations and their management to adopt WS, EE and EP, as these all increase EnPerf in the organization.

Not much work has been conducted on the environmental culture based on REL and WS, using the ability-motivation-opportunity theory. This research analyzes employees’ intrinsic factors, such as REL and WS, to develop EP and EE. Thus helping to comprehend how they can use to enhance EnPerf, which is the current priority for the organizations.

This chapter describes why safe spaces are needed in education settings for full inclusion of gendered identities as they intersect with categories such as race/ethnicity, class, sexual orientation, and ability. This discussion briefly addresses varying and intersecting levels and domains of privilege or marginalization such as identity, inter-/intraaction, organization, society, and knowledge, and how safe spaces in education can support learning as it is entwined with gender, gendered biases, and power dynamics and structures.

The purpose of this paper is to examine the impact of corporate governance on risk and forward-looking disclosures in Qatar.

The authors automatically measure levels of risk and forward-looking disclosures in the annual reports of Qatari firms for the period 2008–2014. The authors also use two ways clustered error pooled panel regressions to examine the determinants of these disclosures.

The authors find that firms with a higher percentage of foreign ownership disclose more forward-looking information; conversely, board size has a negative impact on the forward-looking disclosure. Financial firms tend to disclose less forward-looking information, however, they tend to disclose more forward-looking information after the 2008 global financial crisis. The authors also find negative relationships between the risk disclosure and both the number of non-executive members of the board of directors and duality role of the CEO.

The study uses the quantity of disclosure as a proxy for the quality of disclosure.

The findings should help the users of corporate annual reports in Qatar to understand managerial incentives for reporting risk and forward-looking information. This should help regulators to set a proper set of disclosure rules. Moreover, this study increases our understanding of the behavior of international investors and the board characteristics (i.e. board size) in motivating risk and forward-looking disclosures in Qatari firms.

The authors provide the original empirical evidence on the impact of corporate ownership and board characteristics on risk and forward-looking disclosures for Qatari firms using two ways clustered error pooled panel regressions.